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Commit fe026a85 authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michal Marek
Browse files

kbuild: thin archives for multi-y targets 



THIN_ARCHIVES builds archives for built-in.o targets, have it build
multi-y targets as archives as well.

This saves another ~15% of the size of intermediate artifacts in the
build tree. After this patch, the linker is only used in final link,
and special cases like vdsos.

Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMichal Marek <mmarek@suse.com>
parent 7e2b37c9

scripts/Makefile.build

+10 −3
Original line number Diff line number Diff line
@@ -448,11 +448,18 @@ $($(subst $(obj)/,,$(@:.o=-objs))) \ 
$($(subst $(obj)/,,$(@:.o=-y)))       \

$($(subst $(obj)/,,$(@:.o=-m)))), $^)



cmd_link_multi-link = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis)



ifdef CONFIG_THIN_ARCHIVES

  quiet_cmd_link_multi-y = AR      $@

  cmd_link_multi-y = rm -f $@; $(AR) rcST$(KBUILD_ARFLAGS) $@ $(link_multi_deps)

else

  quiet_cmd_link_multi-y = LD      $@

cmd_link_multi-y = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis)

  cmd_link_multi-y = $(cmd_link_multi-link)

endif



quiet_cmd_link_multi-m = LD [M]  $@

cmd_link_multi-m = $(cmd_link_multi-y)

cmd_link_multi-m = $(cmd_link_multi-link)



$(multi-used-y): FORCE

	$(call if_changed,link_multi-y)